<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Title</title>
	<script src="lib/react.development.js"></script>
	<script src="lib/react-dom.development.js"></script>
</head>
<body>
	<div id="app"></div>
</body>
<script>
	const root = ReactDOM.createRoot(document.querySelector("#app"));
	// 插值表达式接收的内容， render均支持
	// 支持数字，字符串
	root.render("over");// {}
</script>
</html>